Water Fluoridation by Country 2025

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Pct of Population Supplied w/ Fluoridated Water

0%

10%

20%

30%

40%

50%

60%

70%

80%

90%

100%

5 Countries with the Most Water Fluoridation

Country
Pct of Population Supplied w/ Fluoridated Water
Total Population Supplied w/ Fluoridated Water
Hong Kong100%
Singapore100%
Brunei95%
Gabon86%
Australia80%17,744,000
Malaysia75.5%
United States73%207,400,000
Ireland73%3,450,000
Chile70%11,800,000
Israel70%5,422,000
New Zealand61%
Kiribati51%
Canada44%14,560,000
Fiji36%
Guyana32%245,000
Tanzania28%
Libya22%1,400,000
Zimbabwe21%
Argentina19%7,600,000
China15%
Panama15%
Sri Lanka14%
Guatemala13%
Spain11%3,450,000
United Kingdom10%6,127,000
Namibia9%
Malta9%
Senegal8%
Sweden8%
Zambia7%
South Korea6%
Papua New Guinea6%172,000
India5%
Cyprus5%
Vietnam4%
Finland4%
France3%
Mexico3%
Serbia3%
Peru2%580,000
Austria2%
Colombia1%
Philippines0.9%
Denmark0.9%
DR Congo0.8%
Uruguay0.5%
Venezuela0.4%
Thailand0.2%
Czech Republic0.14%
Haiti0.1%
Nigeria0.01%
  • Data year 2012 for most countries. Totals have been updated based upon fresh data for Brazil (2017) and the United States (2018).
  • As of 2023, the British Fluoridation Society has not undertaken a full audit of its 2012/13 data, but estimates that the global number of individuals drinking fluorinated water has risen to more than 400 million, an increase of roughly 5% since 2012/13.
  • Perhaps surprisingly, data from the World Health Organization indicates that adding fluoride to drinking water has no measured impact upon rates of tooth decay.